Propagation of optical pulse in nonlinear media with varying dispersion is both fundamental [1] and important applied problem [2–8] because the dispersion-managed (DM) system, which is a system with periodic dispersion variation along an optical fiber, is one of the most prospective candidate for ultrafast high-bit-rate optical communication lines. Lossless propagation of optical pulse in DM fi...

The main objective of the paper is to implementation of 16-QAM CATV (Community Antenna TV) system. To achieve this task, various dispersion compensation techniques that are more suitable for CATV system in the near future, are determine. It is necessary to use dispersion compensation devices .Dispersion compensation techniques have many advantages as a smooth dispersion profile (i.e. no dispers...

The dispersion unshifted optical fiber is in favor of communications construction project, because of its mature manufacturing technique, low loss, large bandwidth, transmission distance, low engineering cost, the related derivative products, easy realization. In order to pursue a better communication quality, dispersion control has become an important index of engineering. In this paper, based...

It is required to suppress or mitigate the optical signal distortion due to group velocity dispersion and optical Kerr effects in ultra-high speed and long-haul transmission systems. Dispersion management (DM), optical phase conjugation (OPC), and the combination of these two are promising techniques to compensate for the signal distortion. The goal of this paper is to investigate the possibili...

We report on phase-dispersion optical tomography, a new imaging technique based on phase measurements using low-coherence interferometry. The technique simultaneously probes the target with fundamental and second-harmonic light and interferometrically measures the relative phase shift of the backscattered light fields. This phase change can arise either from reflection at an interface within a ...

Dispersion is widely existed in the optical fiber. The reason is various, such as material dispersion, waveguide dispersion, mode dispersion, and so on. It will lead to the signal waveform distortion and pulse broadening and then limit the transmission capacity and bandwidth in the optical fiber. With the rapid development, transmission rate can reach even hundreds of Gb/s, and it may lead to m...